32results about How to "Improve the excavation rate" patented technology

The invention discloses a soil sampling device. The soil sampling device comprises a sampling barrel, a transmission chamber, telescopic rods, a sampling pipe, and a material blocking mechanism; the transmission chamber is fixedly arranged on the upper end of an annular fixing block; the lower end of the annular fixing block is provided with four groups of telescopic rods; the movable ends of thetelescopic rods are connected with the annular fixing block through hinge joint; the fixed ends of the telescopic rods are connected with a fixing plate through hinge joint; the sampling pipe is connected with the internal side of the sampling barrel through slide connection; a sampling chamber is arranged on the internal side of the sampling pipe; the material blocking mechanism is arranged in the sampling chamber, and comprises a sleeve barrel, a threaded rod, a fan-shaped blocking plate, a connecting rod, and a rotating joint. The soil sampling device is novel in design; the four groups oftelescopic rods can be used for realizing mobile positioning of the transmission chamber, and realizing vertical sampling; sampling accuracy is increased; adopted tapered projections are contacted with the ground, so that the friction between the soil sampling device and the ground is increased, and stability is improved; the material blocking mechanism is adopted, so that soil excavated rate is increased greatly.

The invention provides a royal jelly digging machine which comprises a base, a rotary transmission mechanism, a gear drive mechanism and a royal jelly digging mechanism, wherein a rocking handle on the rotary transmission mechanism is rotated so that a royal cell guide wheel pushes a royal cell base to rotate together; the royal jelly digging mechanism and the rotary transmission mechanism synchronously rotate in opposite directions through the gear drive mechanism; and a working head on the royal jelly digging mechanism digs royal jelly out of the royal cell. The royal jelly digging machine provided by the invention can keep the shape of royal jelly and realize continuous operation, is easy to operate and popularize, has the characteristics of high royal jelly digging efficiency, simple structure, small volume for convenience in carrying and the like, and is particularly suitable for field application of swarm farmers.

The invention belongs to the technical field of pile cutting, and particularly relates to a pile cutting device in the green building pile foundation construction process. The pile cutting device comprises a fixed connecting cylinder, a hydraulic motor, a driving cylinder, a mounting cylinder, a reset plate spring, a reset spring, a cutting fan-shaped plate, an adjusting mechanism and a tightening plate spring. According to the pile cutting device, after the end face of the side, away from the cutting fan-shaped plate, of a limiting shell makes contact with the limiting face of a corresponding limiting clamping block, if a cut pile body cannot fall off through gravity, the cutting fan-shaped plate further clamps the cut pile body, at the moment, only the driving cylinder needs to be continuously rotated, a limiting rod on the driving cylinder continuously drives the limiting clamping block mounted on the limiting rod to move, a second inclined face on the limiting clamping block extrudes the limiting shell, the limiting shell continuously drives the cutting fan-shaped plate to move till the cutting fan-shaped plate completely enters a third mounting shell at the lower end of the mounting cylinder, and after the pile body falls off, the cutting fan-shaped plate enables the limiting clamping block to limit the cutting fan-shaped plate through the limiting face under the action of the tightening plate spring.

An embodiment of the invention discloses crop ridge sealing and compressing equipment and belongs to the technical field of agricultural machinery. According to the technical scheme, the crop ridge sealing and compressing equipment comprises a frame and an operating unit fixedly arranged on the frame and is characterized in that a connecting plate is arranged on one side of the frame, the operating unit comprises a first ridge sealing plate, a second ridge sealing plate and a compressing wheel, the first ridge sealing plate and the second ridge sealing plate are rotatably connected to the lower side of the frame, the first ridge sealing plate and the second ridge sealing plate are symmetrically arranged by using a vertical plane where the advancing direction of the crop ridge sealing and compressing equipment is located as the center, a support rack and a compressing plate are arranged on the frame, the support rack is rotatably connected to the frame, the compressing wheel is rotatably connected to one end, away from the frame, of the support rack, the compressing plate is located on the upper side of the support rack and fixedly connected with the frame, the compressing plate isprovided with an elastic adjusting component, the elastic adjusting component is elastically abutted against a position between the compressing plate and the support rack, and the elastic support force of the elastic adjusting component to the support rack can be adjusted to adjust the pressure of the compressing wheel to soil according to the actual conditions of the soil.

The invention belongs to the technical field of fertilizer, and in particular relates to a preparation method and application of poly-aspartic potassium used for plant growth accelerators. Poly-succinimide is generated from aspartate by a thermal polymerization method under the combined effect of boric acid and potassium (hydrogen) sulfate as catalysts, and the catalysts directly hydrolyze the Poly-succinimide into the poly-aspartic potassium without separation under the action of potassium hydroxide. Poly-aspartic acid synthesized by the method has the characteristics of uniform molecular weight distribution, high purity and high yield; moreover, as the boric acid and the potassium (hydrogen) sulfate added as catalysts are not separated from a product, production process is simplified; in addition, the contained boric acid and potassium (hydrogen) sulfate can be used as the plant growth accelerators and can be directly used as additives for nitrogen fertilizer synergism. Compared with the common poly-aspartic acid, the poly-aspartic potassium can improve the rate that plants utilize nitrogen fertilizer, and boron, potassium and sulfur in the poly-aspartic potassium can improve nutritional components. Experiments prove that the poly-aspartic acid synthesized by the method not only can increase the rate that plants utilize nitrogen fertilizer, but also balances the nutritionalcomponents of the nitrogen fertilizer.

The invention belongs to a method for establishing and planting a semi-artificial grassland, and in particular relates to a method for introducing leguminous pasture into a saline-alkali grassland in the north to establish and plant a semi-artificial grassland. The use of leguminous forages to improve natural grasslands in semi-arid areas, especially the mixed sowing of grass and beans, is to select suitable farming methods for special soil conditions and succession rules, based on the characteristics of saline-alkali-tolerant legume forage seeds, seasonal distribution of rainfall, and soil conditions. The dynamic changes of water and salt and the growth period of seedlings select the appropriate sowing time, and take appropriate management measures to weaken interspecific competition, increase the area of ​​assimilative organs, and promote the rapid and successful settlement of leguminous forage seedlings. The method has the advantages of increasing seedling emergence rate, settlement rate and regreening rate, good seedling growth index, low cost, short planting period, easy popularization and the like.

The invention discloses a pedal type soil sampling device. The pedal type soil sampling device comprises a fixed sleeve, a first threaded rod, a pedaling mechanism, a sampling tube and a material blocking mechanism. The sampling tube is arranged in the inner side of the fixed sleeve. The upper end of the sampling tube is fixedly connected to the first threaded rod. The first threaded rod passes through the upper end of the fixed sleeve and is connected to a threaded sleeve fixed to the upper end of the fixed sleeve through threads. The threaded sleeve is rotatingly connected to the fixed sleeve. The material blocking mechanism is arranged in the inner side of the sampling tube. A bottom plate in the right side is provided with the pedaling mechanism. The pedaling mechanism comprises limiting side plates, a foot pedal, a curved plate, a ring gear, a ratchet mechanism, a lantern ring, the bottom plate and a rotating shaft. The pedal type soil sampling device has a novel design. Through the pedaling mechanism, sampling is realized without electric energy as power so that energy is saved and the difficulty of manual rod insertion is reduced.